Bitmain Antminer S21 Immersion (301Th)
Bitmain Antminer S21 Immersion (301Th) vs Canaan Avalon A1566HA 500T
Side-by-side specs, profitability, and home mining comparison.
Specifications Comparison
| Bitmain Antminer S21 Immersion (301Th) | Specification | Canaan Avalon A1566HA 500T |
|---|---|---|
| 301.0 TH/s | Taux de hachage | 500.0 TH/s |
| 5,569 W | Consommation électrique | 8,400 W |
| 18.5 J/TH | Efficiency | 16.8 J/TH |
| 50 dB | Niveau de bruit | 40 dB |
| 17.2 kg | Weight | 20.0 kg |
| 19,001 BTU/hr | BTU Output | 28,661 BTU/hr |
| 44/100 | Home Mining Score | 51/100 |
| — | Release Year | — |
| SHA-256 | Algorithme | SHA-256 |
| Bitmain | Manufacturer | Canaan |
Profitability Comparison
Bitmain Antminer S21 Immersion (301Th)
Canaan Avalon A1566HA 500T
Based on BTC price of $78,175 and current network difficulty as of May 16, 2026. Actual results vary.
Verdict
Weighing six performance factors, the Canaan Avalon A1566HA 500T comes out ahead — it takes 4 of 5 (efficacité, hashrate, score de minage domestique, niveau sonore). Its biggest concrete edge: 66% more hashrate (301 vs 500 TH/s). The Bitmain Antminer S21 Immersion (301Th) claws back ground on consommation électrique. Review the detailed specs and profitability calculations above to determine which miner best fits your specific setup.
Spec Deltas
The Bitmain Antminer S21 Immersion (301Th) and Canaan Avalon A1566HA 500T diverge on the metrics below — each gap expressed as a real percentage, not a vague "better":
- Canaan Avalon A1566HA 500T 66% more hashrate (301 vs 500 TH/s)
- Bitmain Antminer S21 Immersion (301Th) 34% better power draw (5,569 vs 8,400 W)
- Canaan Avalon A1566HA 500T 9% better efficacité (18.5 vs 16.8 J/TH)
- Canaan Avalon A1566HA 500T 20% better noise (50.0 vs 40.0 dB)
- Bitmain Antminer S21 Immersion (301Th) 14% better weight (17.2 vs 20.0 kg)
- Canaan Avalon A1566HA 500T 51% more heat output (19,001 vs 28,661 BTU/hr)
- Canaan Avalon A1566HA 500T 16% more score de minage domestique (44.0 vs 51.0)
Cost & ROI Over Time
A miner pays for itself in profit, not specs. These projections track upfront cost against one, two and three years of net earnings at $0.10/kWh.
| Bitmain Antminer S21 Immersion (301Th) | Metric | Canaan Avalon A1566HA 500T |
|---|---|---|
| $3,333 | Upfront cost (MSRP) | — |
| -$2.54 | Daily net profit | -$2.17 |
| -$4,259 | Net after 1 year | -$793 |
| -$5,185 | Net after 2 years | -$1,586 |
| -$6,111 | Net after 3 years | -$2,379 |
| Does not pay back at current rates (negative daily profit) | Payback period | — |
Projections assume continuous operation, a flat $0.10/kWh rate, and no hardware degradation, pool fees, or BTC price change. Real-world ROI varies.
Best For...
Best for Profitability
TieBoth miners produce similar daily profit.
Best for Home Mining
Canaan Avalon A1566HA 500TScore: 51/100. 40 dB noise level.
Best for Efficiency
Canaan Avalon A1566HA 500T16.8 J/TH — lower electricity cost per terahash.
Frequently Asked Questions
Which makes more money, the Bitmain Antminer S21 Immersion (301Th) or the Canaan Avalon A1566HA 500T?
At the current BTC price and a $0.10/kWh electricity rate, the Canaan Avalon A1566HA 500T is more profitable at $-2.17/day compared to $-2.54/day for the Bitmain Antminer S21 Immersion (301Th). Profitability depends heavily on your electricity rate — use the selector above to calculate with your actual costs.
Bitmain Antminer S21 Immersion (301Th) vs Canaan Avalon A1566HA 500T: which runs at a lower noise level?
The Canaan Avalon A1566HA 500T is quieter at 40 dB compared to the Bitmain Antminer S21 Immersion (301Th) at 50 dB. For home mining, lower noise levels make a significant difference in livability.
Bitmain Antminer S21 Immersion (301Th) vs Canaan Avalon A1566HA 500T: which fits a residential setup better?
The Canaan Avalon A1566HA 500T scores 51/100 on our Home Mining Score (vs 44/100 for the Bitmain Antminer S21 Immersion (301Th)). This composite score factors in noise, power requirements, heat output, size, and setup ease — all critical for residential mining.
How far apart are the Bitmain Antminer S21 Immersion (301Th) and Canaan Avalon A1566HA 500T on J/TH?
The Bitmain Antminer S21 Immersion (301Th) runs at 18.5 J/TH while the Canaan Avalon A1566HA 500T runs at 16.8 J/TH — a difference of 1.7 J/TH. Lower efficiency means less electricity per terahash of mining power, directly reducing operating costs. In relative terms that is 9% better efficacité (18.5 vs 16.8 J/TH).
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